Adjustable clasp



Dec. 23, 1930.

D. 'DE PLANDOLIT Y BORDAS ADJUSTABLE CLASP Filed Aug. 24. 1928 1% TTO R rr-ETs Patented Dec. 23, 1930 PATENT @FFICE DOLORES DE PLANDOLIT Y BORDAS, OF BARCELONA, SPAIN ADJUSTABLE CLASP Application filed August 24, 1928, Serial No. 301,917, and. in Spain September 1, 1927.

This invention relates to clasps for holding chains or cords, and especially to such clasps in which the chain or cord can be adjusted.

The object of the invention is to provide a 5 simple and cheap clasp which will permit movement of a chain therethrough in one direction while preventing any backward move ment of the chain. Other objects and advantages of the invention will appear below.

The invention consists primarily of a guide having'a curved end and a slot in the curved end, so that the chain is securely held against movement in one direction only. The device is very useful where it is necessary to tighten =1 a chain or strap. Among other things it may be used on clothing, belts, jewelry, and for all sorts of rope holders and package ties.

The invention will appear more fully from the following description when taken in conjunction with the accompanying drawings which form a part of this specification.

In the drawings: Fig. 1 is a vertical cross-section of the device when in a horizontal position.

Fig. 2 is a top plan view of the same. Fig. 3 is a side elevation of a modification of the device in use.

The use of a slot to hold a chain is well known, in a somewhat similar way. But all such slots, as heretofore used, have been in straight plates, and so have prevented movement of the chain in either direction. The present invention is an improvement on chain holders of this type. In the former devices 5 it was necessary when ti htening the chain to lift the links out of the slot by pulling the chain to one side. In the present device a straight pull on the chain is suflicient.

In the drawings, the guide consists of a bottom part 1 and sides 2 which hold the chain in place. One end 4 of the bottom 1 is bent downwardly away from the side of the bottom on which the chain rests. In this curved end is a slot 5 running longitudinally of the bottom. A chain 3 lies in the guide,

and its alternate links enter the slot 5. The depth of the slot is approximately three quarters of the width of one of the links of the chain.

In the form shown in Fig. 3, the chain 3 is Ill secured at one end to a member 6, passes through or around a guide 7, and back to member 6, which engages it in the same way as in Figs. 1 and 2.

It is clear that when a pull is exerted on the chain, as downward in Fig. 1, the curved end will allow the chain to move downwardly. As soon as the tension is released, the chain will start to move back, but the neXt link which is aligned with the slot will slip into the slot, and the link immediately below it will strike the sides of the slot and movement of the chain will be prevented. In addition,

through the slot may be used. In any case the action is the same.

While I have described one embodiment of my invention, I wish it to be understood that I do not intend to limit myself thereby except within the scope of the appended claim.

I claim:

A clasp of the character described, comprising a fiat bot-tom plate having a portion at one end thereof curved out of the plane of the remainder of the plate, said curved portion being provided with a centrally disposed slot, and a pair of sidewalls disposed at right angles to the fiat portion of the bottom plate. In testimony whereof I have signed my name to this specification.

DOLORES de PLANDOLIT y BORDAS. 

